Hydraulic reduction drive



Feb. 9, 1926. 1,572,020

J. F. JAWOROWSKI HYDRAULI C REDUCTION DRI VE Filed Feb. 1925 2 Sheets-5heet 1 k jnuc nfo'a :LEURWOROWSKI Feb. 9 1926.

J. JAWOROWSKI HYDRAULIC REDUCTION DRIVE 1925 2 Sheets-Sheet 2 Filed Feb, 20

an vow-r01 did HWOROWSN Patented Feb. 9, 1926.

UNITED STATES PATENT OFFICE.

JOSEPH F. JAWOROWSKI, OF CLEVELAND, OHIO, ASSIGNOB OF ONE-HALF TO SAMUEL E. DETTELBACH, OF CLEVELAND, OHIO.

nYnnnpLIc nmmc'rro'n DRIVE.

Application filed February 26, 1925. Serial No. 10,676.

To all whom it may concern:

Be it known that I, J osnrn F. J Awonow- SKI, a cit zen of the United States, residing at Cleveland, in the county of Cuyahoga,

State of Ohio, have invented certain new and useful Improvements in a Hydraulic Reduction Drive, of which the following is a specification.

My invention pertains to an improve ment in a hydraulic reductiondrlve, my general object being to provide a rotary device in which liquid may be continuously circulated and utilized to transmit power at a reduced speed, substantially as hereinafter shown and described and more particularly pointed out in the cla ms.

In the drawings accompanying this application, Fig. 1 is a sectional view transversely through the device on line l-1 of Fig. 4. Fig. 2 is a horizontal section of the rotor member on line 22 of Fig. 1. Fig. 3 is a horizontal section on line 3-3 of Fig. 1. Fig. 4 is a longitudinal section on line 44 of Fig. 1'.

The invention comprises a circular casing 2 having an integral base 3 adapted to support the device in a stationary position. Casing 2 is closed at its ends by removable plates or walls 4-4 having hubs extendmg therefrom within which two separate shafts 5 and 6 are journaled. A packing nut 7 and gland 8 may be used at each hub to prevent leakage of the liquid confined within casing 2. A filling opening 9 is shown at the top of the casing which is adapted to be closed by a screw plug 11). Shaft 5 is an integral or fixed 'part of a plate or disk 11 which is secured to a heavy --nular b ring or annular body 12 contained within casing 2. A similar plate or disk 14 1s af fixed'to the opposite side of ,body 12 and has a short extension 15 sleeved upon shaft 6 and extending into a counter-bore 17 in the hub of plate 4. Annular body 12 is thus supported to rotate freely withln the casing independently of shaft 6. This shaft is formed with a pair of eccentric or crank portions 18 and 19 adapted to project into separate circular chambers 2020, formed within the end faces of body 12. These chambers are concentric with the axis of annular body 12 and a wall 22 separates the chambers. A

central 0 ening 23 in wall 22 permits any 12 to be sleeved over the eccentric portions of shaft 6, and a short extension 24 of shaft 6 projects into a counterbore 25 formed centrally within plate 11 and shaft 5, thereby providing a hearing at the inner end of shaft 6. Each eccentric or cam portion on shaft 6 carriesa separate roller 26, and each roller has rolling engagement with the circular wall of the circular chamber within whichit is confined. The two cranks and rollers are offset on the shaft in respect to each other, preferably one hun dred and eighty degrees.

Each fiat end face of body 12 is also formed w.th an oblong chamber 27 having two short passages 28 at one end which communicate with the circular chambers 20 directly opposite thereto. Two oscillatory members 29--29 are confined within chamber 27, the free moving end of each being in the form of a curved blade 30 which acts as an oscillatory abutment. The curved face of blade 30 engages the curved side'31 of passage 28 and the rabbeted end 32 of the hide projects beyond the passage into contact with the peripheral surface-of roller 26. A narrow slot or a round 0 ening 33 of small diameter extends fromtle circumference of annular body 12 to chamber 27 thereby permitting a redetermined amoun of liquid to flow, un er restriction out of chamber 27 into the annular space 34 within casing 2. The liquid passes into chamber 27 from the crescent-shaped space formed by roller 26 and the round wall of circular chamber 20. Abutment member 30 divides this crescent shaped space into two parts a and b, respectively, and a concentric intake channel 35 is provided within body 12 which channel extends from a reduced central part of the body to a straight passage 36 leading to the convex side of abutment member 30 where it may have open communication at corner 37 with the space marked 6. The rabbeted end 32 of member 30 permits communication between space I) and intake passage 36 when said member is retired entirely within outlet passage 28 by roller 26. It follows that with the rollers offset one-hundred and eighty degrees that the respective abutment members will Q cupy different oscillatory positions and act to promote a uniform flow of liquid passing through revolving bod 12. A uniform pressure is also establishe within casing 2 and a differential rotat on effected between the two shafts when power is applied to one Ill of the shafts, it being understood that the small opening 33 restricts the outflow of liquid while the larger channels 35 permit free inflow. The outer end of channel 35 may also flare to larger dimensions to promote free circulation of the liquid during r tary movements, and its ofi'set relat'on to the reduced central part of body 12 also promotes inflow. The curved channels 35 are in reality supply pockets for the intake side of the segmental spaces 6.

A rocking element 38 is pivoted at its middle upon a pin 39 extending into chamber 27, and the outer ends of this element bear down upon upright pins 40 which are seated in sockets within the free moving ends of oscillatory member 29, thereby holding these members constantly in engagement with the rollers.

What I claim is:

1. A fluid power-transmittin device, comprising a casing, a rotatable body therein having a shaft journaled within said casing and formed with circular chambers, a crank shaft having rollers operating in said chambers, oscillatory abutments mounted upon said body and engaging said rollers, and said body having passages therein on opposite sides of said abutments adapted to permit circulation of a fluid through said chambers and easing.

2. A power-transmitting device, comprising a casing containing a liquid, a chambered body rotatably mounted \vithinisa-id casing, a shaft having eccentrics and rollers adapted to revolve within said chambered body, oscillatory abutments engaging said rollers, and said body having openings of restricted area and passages of larger area between its exterior and interior on opposite sides of said abutments.

3. A power transmitting device, comprising a casing containing a liquid, a round body having a shaft journaled within said taraeao engaging said rollers, and said bo y being spaced apart from the walls of said casing and having openings of restricted area in its circumference in open communication with said chambers at one side of said abutments and formed with passages leadin from said chambers on the opposite side oi: said abutments to the space within the casing surrounding said body.

4. A power transm'ittim device, comprising a casing containing a l'quid, a rotatable body within said casing having circular chambers, an eccentric shaft having rollers operating within said chambers, oscillatory members engaging said rollers, and said body having intake pockets at its circumference leading to said chambers and outlet passages leading from said chambers terminating in a restricted outlet opening communicatlng with the casing interior.

'5. A power transmitting device, comprising a casing adapted to contain a liquid, 9. chambered body rotatably mounted within said casing, an eccentric shaft and a pair of rollers operating within said chambered body, a pair of oscillatory members engag ing said rollers, a rocking device ada ted to hold said oscillatory members in working engagement with said rollers, and said body havin intake pockets leadin to its chambered interior and provided with a restricted outlet communicating with the interior of said casing.

In testimony whereof I afiix my signature.

JOSEPH F. J AWOROWSKI. 

